Towada Aosuji Tephra

Towada Aosuji Tephra Oike and Nakagawa, 1979

Abbr.: AP

Synonym: Towada AP Tephra

Type locality: Suginoki, Towada city, Aomori prefecture
Tephra
late Pleistocene

Lithofacies: Pumice volcanic lapilli fall deposit, Volcanic ash
Lithofacies (Upper): Volcanic ash
Lithofacies (Middle): Pumice fall deposit
Lithofacies (Lower): Pumice fall deposit

Source: Towada caldera
Thickness (Overall): 54 - 72 cm
Thickness (Upper): 12 cm
Thickness (Middle): 7 cm
Thickness (Lower): 7 cm

Takadate Tephra Group
[ Upper ]
~~~~~~~~~~~~~~
Towada T-22 Tephra
~~~~~~~~~~~~~~
Towada SP Tephra
~~~~~~~~~~~~~~
Towada Okoshi 2 Tephra
~~~~~~~~~~~~~~
Towada T-17 Tephra
~~~~~~~~~~~~~~
Towada Aosuji Tephra
~~~~~~~~~~~~~~
Towada T-15 Tephra
~~~~~~~~~~~~~~
Towada Kasutera Tephra
~~~~~~~~~~~~~~
Towada Sc1 Tephra
~~~~~~~~~~~~~~
Toya Pyroclastic Flow Deposit
~~~~~~~~~~~~~~
Towada Zarame 2 Tephra
~~~~~~~~~~~~~~
Towada Zarame 1 Tephra
~~~~~~~~~~~~~~
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: southern part of Kamikita plain, Aomori pref.
Distribution: Suginoki, Towada city, Aomori pref.; Nonoue, Ninohe city, Iwate pref.; Kokarumai, Karumai city, Kunohe county, Iwate pref.

Tuzino et al. (2018) Geology of the Ichinohe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 161p. (in Japanese with English abstract 4p.)
Kudo (2005) Geology of the Towada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 3p.)
Yoshida et al. (1987) Geology of the Rikuchu-Ono District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)